C#

Delete List of Item to Database using Entity Framework

Introduction

In this blog we will see how to delete list of items from database using entity framework.

Step 1: Create asp.net web application

WebForm1.aspx

  1. <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="DeleteList_EntityFramework.WebForm1" %>  
  2.   
  3. <!DOCTYPE html>  
  4.   
  5. <html xmlns="http://www.w3.org/1999/xhtml">  
  6. <head runat="server">  
  7.     <title></title>  
  8. </head>  
  9. <body>  
  10.     <form id="form1" runat="server">  
  11.     <div>  
  12.         <asp:Button ID="Button1" runat="server" Text="Delete Data" OnClick="Button1_Click" />  
  13.     </div>  
  14.     </form>  
  15. </body>  
  16. </html>  

WebForm1.aspx.cs

  1. using System;  
  2. using System.Collections.Generic;  
  3. using System.Linq;  
  4. using System.Web;  
  5. using System.Web.UI;  
  6. using System.Web.UI.WebControls;  
  7.   
  8. namespace DeleteList_EntityFramework  
  9. {  
  10.     public partial class WebForm1 : System.Web.UI.Page  
  11.     {  
  12.         protected void Page_Load(object sender, EventArgs e)  
  13.         {  
  14.   
  15.         }  
  16.   
  17.         protected void Button1_Click(object sender, EventArgs e)  
  18.         {  
  19.             EmployeeDBEntities context = new EmployeeDBEntities();  
  20.             List<Employee> employees = new List<Employee>()  
  21.             {  
  22.                 new Employee{EmpId=1},  
  23.                 new Employee{EmpId=2},  
  24.                 new Employee{EmpId=3}  
  25.             };  
  26.   
  27.             foreach (Employee employee in employees)  
  28.             {  
  29.                 context.Employees.Remove(employee);  
  30.             }  
  31.   
  32.             context.SaveChanges();  
  33.         }  
  34.     }  
  35. } 

Output of the application looks like this

Summary

In this blog we have seen how we can delete list of items to database using entity framework. Happy Coding!
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